Home / 395,634.11-545,974.34-214,350.55

Finding the Fourth Proportional to 395,634.11, 545,974.34 and 214,350.55

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Solution

The fourth proportional to 395,634.11, 545,974.34 and 214,350.55 is: 295,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,634.11 : 545,974.34 = 214,350.55 : x
  2. Step 2: Convert to fraction form
    395,634.11/545,974.34 = 214,350.55/x
  3. Step 3: Cross multiply
    395,634.11x = 545,974.34 × 214,350.55
  4. Step 4: Simplify right side
    395,634.11x = 117,029,899,235.83
  5. Step 5: Solve for x
    x = 117,029,899,235.83/395,634.11
  6. Step 6: Final answer
    x = 295,803.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.